From 5376863c0c1252194e722eac14269e5eaba6fda9 Mon Sep 17 00:00:00 2001
From: Pierre-Emmanuel Viel <p.emmanuel.viel@gmail.com>
Date: Thu, 27 Aug 2020 12:21:02 +0200
Subject: [PATCH] bugfix

---
 modules/flann/include/opencv2/flann/kmeans_index.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/flann/include/opencv2/flann/kmeans_index.h b/modules/flann/include/opencv2/flann/kmeans_index.h
index 98ec68a87b..f96b0f81fc 100644
--- a/modules/flann/include/opencv2/flann/kmeans_index.h
+++ b/modules/flann/include/opencv2/flann/kmeans_index.h
@@ -773,7 +773,7 @@ private:
         memoryCounter_ += int(veclen_*sizeof(CentersType));
         unsigned int* mean_accumulator = new unsigned int[accumulator_veclen];
 
-        memset(mean_accumulator, 0, accumulator_veclen);
+        memset(mean_accumulator, 0, sizeof(unsigned int)*accumulator_veclen);
 
         for (unsigned int i=0; i<indices_length; ++i) {
             variance += static_cast<unsigned long long>( ensureSquareDistance<Distance>(